S56.302
⚠ Non-billable (Header)Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
inheritedRules inherited from parent codes.
- • injury of muscle, fascia and tendon at or below wrist (S66.-)
- • sprain of joints and ligaments of elbow (S53.4-)
Child Codes (3)
Clinical Description
ICD-10-CM code S56.302 represents unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under S56.302.
Frequently Asked Questions
What is ICD-10 code S56.302?
ICD-10-CM code S56.302 is "Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is S56.302 a billable ICD-10 code?
No, S56.302 is a non-billable header code. A more specific child code must be used for billing.
Can S56.302 be coded with other codes?
S56.302 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in S56.30
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)